莱州湾及黄河口水域地理学特征与鱼类多样性

以历史和调查资料为基础，介绍了莱州湾及黄河三角洲的地理位置及其发育史，指出莱州湾是一个年轻的海湾，而黄河三角洲则是一个不稳定的河口三角洲。莱变地质构造复杂，东部为上升区，西部属沉陷区；黄河三角洲则属于淤泥岸坡，沉积物呈从东向西，由南向北逐渐细化为特征，其水文特征因地处暖温带北缘、属季风气候区。在陆上气候、黄河冲淡水和黄海冷水团交互影响下，本水域形成温、盐季节变化显著，逆时针环流、往复流性质的潮流及

The geographical characteristics and fish species diversity in the Laizhou Bay and Yellow River estuary

This paper analyzed the history, topography and sedimentary characteristics of the Laizhou Bay and Yellow River estuary, and their relationships with fish species diversity. This region has a relatively short geological history of about 10 000 years, which determines a low level of fish species diversity. There are 96 fish species belonging to 46 families, of which the temporal and spatial distributions are closely related to the topography and sedimentary in this region. The sharp decrease of fresh water discharge from the Yellow River recent years threatens the fishery resources, fish species diversity and ecosystem in the Yellow and Bobal Sea.